at work we use it with Office 365,for all its faults, if you are careful not to go down too many rabbitholes with metadata its a useful thing for sharing corporate info (company policies, form templates, minutes of meetings etc) especially for orgs split across sites and remote workers (what was once called an extranet). Once filled with data and appropriate views it can be easy for non tech folk to use. I wouldn't have anything to do with it for fun/hobby projects though!